The Intelligibility of Filtered-Clipped Speech in Noise
Earlier experiments have shown tht the use of highpass filtering prior to infinite clipping produces a speech signal which is highly immune to noise. Tests were performed to determine the cut-off frequency and asymptotic slope of the highpass filter which yield the highest intelligibility of filtered/clipped speech in noise. Filtered/clipped speech obtained using this optimum filter setting is shown to be considerably more immune to noise than other types of filtered/clipped speech and normal speech heard at the same average power level. Results are shown to confirm earlier views with respect to the significance of the various speech formants.
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is temporarily free for AES members.